Boundary Atlas

ZIP code 54820: Brule, WI

ZIP code 54820 is in Brule (24% of residents), in Douglas County (66%) and Bayfield County (34%), Wisconsin. 76% of its residents live outside city limits. It is in Wisconsin's 7th congressional district. Its state senate district is State Senate District 25; its state house districts are Assembly District 73 (98%) and Assembly District 74 (1.7%).

864residents (2020 Census)
116.2 sq miland area
1cities and towns
1congressional district
7voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Brule24%

CountyShare of ZIP residents
Douglas County66%
Bayfield County34%

Town or county subdivisionShare of ZIP residents
Brule town56%
Oulu town24%
Hughes town9.4%
Cloverland town7.9%
Highland town1.7%
Orienta town0.9%
Barnes townland only

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 7th congressional district (WI-07)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 25100%

State house districtShare of ZIP residents
Assembly District 7398%
Assembly District 741.7%

Voting precincts

7 voting precincts overlap ZIP 54820. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:54820")

ZIP 54820 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.